Custom resources in a resource stack

ABSTRACT

A resource stack managed by a resource stack provider is created based on a resource stack template that integrates a custom resource from a second provider into the resource stack using a notification system with the second provider. For example, a customer may create a template that defines a resource stack that comprises resources available from the resource stack provider and one or more custom resources provided by a second provider. When a resource stack is created, resources available from the resource stack provider may be provisioned. Custom resources may be initialized by notifying the provider of the custom resource of the requested integration of the custom resource with the resource stack and requested configuration details. The custom resource provider may respond with an indication of successful integration when the custom resource has been successfully initialized. After initializing the resources, the resource stack may be enabled for use.

This application is a continuation of U.S. patent application Ser. No.13/668,151, filed Nov. 2, 2012, now U.S. Pat. No. 9,058,219, which ishereby incorporated by reference in its entirety.

BACKGROUND

Organizations may utilize various computing resources in support oftheir operations. Computing include various types of resources, such ascomputing resources, data storage resources, and network resources.Computing resources are often also provided as a service. A provider ofsuch services may provide access to a machine to host an application,storage to store application data, cache to quickly respond to repeateddata requests and networking to enable communication between resources.The resources may be physically hosted in a data center (or multipledata centers and remotely and programmatically managed by others. Bymaking use of the data center services, a customer may pay for computingand/or resource use from a provider rather than purchasing anticipatedhardware needs. This enables a customer to expand and contract use ofcomputing services according to demand. For example, an application maybe configured to request more storage as needed rather than a developeror administrator monitoring and anticipating use. This on-demandinfrastructure model can be referred to as Infrastructure as a Service(IaaS). A collection of resources in an IaaS model is often referred toas a resource stack.

Other provider models include Platform as a Service (PaaS) and Softwareas a Service (SaaS). In a PaaS model, a provider provides an executionenvironment in which a developer may construct an application. Forexample, a provider may provide an operating system, programminglanguage execution environment, database and webserver in which acustomer may construct a web application. In a SaaS model, a providerprovides an application that may be accessed by a customer. For example,a customer may only see a single interface to the application, but theSaaS provider may scale the application dynamically to meet clientdemands.

BRIEF DESCRIPTION OF THE DRAWINGS

Various embodiments in accordance with the present disclosure will bedescribed with reference to the drawings, in which:

FIG. 1 shows an illustrative example of a system with a resource stackin accordance with at least one embodiment;

FIG. 2 shows an illustrative example of a system with a resource stackin accordance with at least one embodiment;

FIG. 3 shows an illustrative example of a message in accordance with atleast one embodiment;

FIG. 4 shows an illustrative example of a process that may be used inaccordance with at least one embodiment;

FIG. 5 shows an illustrative example of a process that may be used inaccordance with at least one embodiment;

FIG. 6 shows an illustrative example of a process that may be used inaccordance with at least one embodiment; and

FIG. 7 illustrates an environment in which various embodiments can beimplemented.

DETAILED DESCRIPTION

In the following description, various embodiments will be described. Forpurposes of explanation, specific configurations and details are setforth in order to provide a thorough understanding of the embodiments.However, it will also be apparent to one skilled in the art that theembodiments may be practiced without the specific details. Furthermore,well-known features may be omitted or simplified in order not to obscurethe embodiment being described.

Techniques described and suggested herein include creating a resourcestack managed by a resource stack provider from a resource stacktemplate that integrates a custom resource from a second provider intothe resource stack using a notification system with the second provider.For example, a resource stack provider may provide tools to create acollection of interdependent resources that form a resource stack. Theresource stack provider may have a catalog of resources that it managesthat can be included in the resource stack. Other resources, includingthose not managed by the resource stack provider, may be still beincluded in the catalog for use in a resource stack as a custom resourceeven though the custom resource is managed by the custom resourceprovider. This allows for resources that do not conform to internalrequirements of the resource stack provider to be included in resourcestacks. The custom resource provider may provide template, integration,configuration and/or communication information to the resource stackprovider to use in communicating requests for creating, reading,updating and destroying custom resources as part of a resource stack.The proper construction of a template may be described in documentationprovided to users that construct templates to build a resource stack.

In one embodiment, a customer may create, select or otherwise specify atemplate that defines a resource stack. The resource stack may compriseresources available from the resource stack provider and one or morecustom resources provided by a second provider. The template may alsoprovide information about linking the resources in the resource stacktogether, including the custom resource, and configuring the resources.When a resource stack is created, the resource stack template may befollowed. Dependencies between resources may be determined and anordering of instantiation of the resources determined. Resourcesavailable from the resource stack provider may be provisioned. Customresources may be initialized by notifying the provider of the customresource of the requested integration of the custom resource with theresource stack and requested configuration details. The custom resourceprovider may respond with an indication of successful integration whenthe custom resource has been successfully initialized. After successfulprovisioning and integration of the resources and custom resources inthe resource stack, the resource stack may be enabled for use. Anadvantage of this resource stack that integrates custom resources isthat resources managed by other systems may be integrated into theresource stack. This may allow a resource stack to integrate IaaS, PaaSand SaaS solutions from other providers that may not be availablethrough the provider or that may be preferable to solutions from aprovider of the resource stack.

The initialization of the custom resource may be performed by a providerof the custom resource in response to a notification from the resourcestack provider. The notification may include or otherwise referenceinformation that enables the provider of the custom resource tointegrate the custom resource into the resource stack. In oneembodiment, the resource stack provider constructs a message thatcomprises an independent portion and a payload. The independent portionmay be custom resource independent and include information about theresource stack and/or template. The payload may include informationspecific to the configuration of the custom resource. The provider ofthe custom resource may then use the information from the notificationto initialize the custom resource for use with a resource stackassociated with the notification. The custom resource provider may thenprovide an indication of successful integration with the resource stackto the resource stack provider. In an embodiment, this indication mayinclude a success/fail identifier, a custom resource identifier for usewhen interacting with the custom resource and additional informationspecific to the custom resource, such as default settings. In someembodiments, the indication is returned via a return message. In otherembodiments, the indication is returned by placing the response in astorage location. In one embodiment, a messaging service is used inwhich the protocol may be selected by the message receiver.

For example, a web application template may include a webserver,database and external electronic mail service. The template may specifyone or more dependencies between the webserver, database and externalmain service. For instance, one specified dependency may require thatthe database and external electronic mail service must be active beforethe webserver is running. The stack management system may receive arequest to create a resource stack. Using the template, a stackmanagement system may cause a workflow to be created that provisionsresources of the resource stack while respecting any dependenciesspecified by the template. A workflow processing system of the stackmanagement system may execute the workflow and cause the database to beprovisioned before other resources of the resource stack. The workflowprocessing system may then notify a management system of the externalelectronic mail service that integration of the electronic mail servicewith the resource stack is requested. The management system of theexternal electronic mail service may, in response to being notified ofthe need to integrate the external electronic mail service with theresource stack, initialize the external electronic mail service tointegrate with the resource stack. Upon successful initialization of theexternal electronic mail service, the management system of the externalelectronic mail service may then return an indication of successfulintegration of the electronic mail service with the resource stack. Thisreturn may include further information useful to the webserver to usethe external electronic mail service, such as authentication credentialsnecessary for the external electronic mail service to operate properlyin the network stack.

After the database and external electronic mail service are provisioned,initialized and/or configured, the webserver may be provisioned. Theworkflow processing system may cause the webserver, which may beimplemented as a virtual computer system, to be provisioned using amachine image and configuration that allows the webserver to use theresources in the resource stack. The machine image may be a set of dataused to instantiate a virtual computer system with a particularoperating system. In some embodiments, the machine image may be accessedfrom a durable data storage service and provided to a block data storagedevice service that is operably connected over a network to a computingresource service (e.g., program execution service) to enable a hardwarehost to utilize the machine image to activate and operate as a virtualcomputer system. Once the webserver is active, the workflow processingsystem, in this example, may enable the resource stack for use. Enablingthe resource stack for use may include reconfiguring one or moreinternal systems to provide programmatic control of the resource stackto the entity for whom the resource stack was provisioned.

In some embodiments, the independent portion of the message transmittedfor notification includes a stack identifier, logical resourceidentifier, unique identifier, namespace and context information. Thestack identifier may provide a value that can be used to reference theresource stack. The logical resource identifier may be an identifierthat refers to the custom resource in the template. A unique identifiermay uniquely identify the message so that duplicate messages may bediscarded. A namespace may define the bounds of identifiers to allow fordisambiguation of similar identifiers. The context information mayprovide information about the resource stack construction, such asidentifiers. In one embodiment, the context includes unique identifiersand/or configurations of resources present in the stack so that a customresource may refer to specific resources in the stack when incommunication with resources in the stack.

As discussed, dependencies in the resource template may be respectedwhile provisioning resources of a resource stack. Dependencies and maybe explicit or implicit. An explicit dependency may be specified by thetemplate. For example, an explicit dependency may be defined by thetemplate as a first resource that must have a second resource activebefore the first resource may be constructed. Definition of a dependencyin a template may itself be explicit and/or may be implicit, forexample, by relative positions of resources in a schema of the template.In another example, an explicit dependency may be shown through a linearordering of construction of resources or a directed acyclic graph (DAG).An implicit dependency may not be described in the template, butdetermined from other sources. In some embodiments, an external rule setis given that determines implicit dependencies. In other embodiments,connections between resources and/or configuration information may beused to determine implicit dependencies.

Custom resource definitions for use in a template may be created by aprovider of a custom resource and used by a customer to integrate thecustom resource in a resource stack definition in a template definingthe resource stack. In one embodiment, a provider of a custom resourcedefines valid information about a custom resource that may be used topopulate a template. The provider may also provide a generator thatconstructs a notification and/or payload in a notification to theprovider that may be used in conjunction with the template and thecustom resource. A generator may be a programming module implemented ona computer system that is configured to translate a custom resourcedefinition in a template into at least a payload based at least in parton the template and/or resource stack implementation details. Theprovider may also provide a configurator that consumes a response fromthe provider in response to the notification and provides configurationand/or modifications to resources in the resource stack to integrate thecustom resource. A configurator may be a programming module implementedon a computer system that is executed in response to a response from acustom resource provider to finish integration of the custom resourcewith other resources.

In some embodiments, the resource stack provider and the custom resourceprovider are sub-entities of a service provider. For example, a serviceprovider includes a resource stack provider that manages provisioning ofdatabases, virtual machines and storage devices. The service providermay also include services that are not managed by the resource stackprovider, but can be integrated through a custom resource such as searchfunctionality, electronic mail, log publishing and monitoring services.In one embodiment, the resource stack provider manages a selection ofresources and provides a custom resource construct for managed resourcesthat already have management functionality. For example, the resourcestack provider may provide infrastructure, such as virtual machines andstorage, while allowing a custom resource construct for services, suchas electronic mail and search services. The services may actually beconstructed of a separate resource stack that is managed by a providerdifferent than the stack management system.

Techniques described and suggested herein also provide ways by which aresource stack can be used to create, read, update and destroy resourcestogether, including a custom resource. In one embodiment, a user maychoose to upgrade components of a resource stack while keeping others.For example, a user may choose to upgrade a virtual machine instance ofa particular type to a virtual machine instance that is more capable inone or more regards, such as a virtual machine instance with morecomputing power. The user may modify the original stack template toinclude the more capable instance or use a user interface to select themore capable instance and request the change. In response, the morecapable instance may be provisioned. Settings of the resource stack thatrelied on the virtual machine instance may be changed to use newsettings of the more capable instance, such as hostname and/or InternetProtocol (IP) address. In another embodiment, a custom resource may bemodified and settings updated to match the updated custom resource. Forexample, a template may be modified to select additional monitoringservices from a custom resource or a user may select the additionalmonitoring services from a user interface, such as a web browser. Anotification may be sent to the provider of the monitoring services withinformation about the requested modification. An indication ofsuccessful integration with the resource stack may be returned.Information included with the indication may be used to furtherconfigure and/or modify other resources in the resource stack tointegrate the change. After the modification has been successfullyintegrated, the resource stack may be used with the modifications.

In one embodiment, use of the custom resource may cause a cost to accrueto an account of a customer. The cost may be applied to an accountrelated to the custom resource or an account related to the stackmanagement system. In one embodiment, a unified billing may be imposedwhere a provider of a custom resource informs a provider of the resourcestack about usage of a custom resource. The customer may pay a unifiedbill received from the resource stack provider which may then pay theprovider of the custom resource. In some embodiments, a custom resourceprovider may receive a percentage of usage fees for use of the resourcestack.

The term provisioning is meant to be read broadly to include theassignment of a computing resource to a use. In some embodiments, thisincludes preparing the computing resource for use. In one embodiment, aprovisioning of a resource would include the assignment of a server,installation of an operating system, installation and configuration ofthe software to be placed on the resource and enabling the constructedresource for use. For example, a provisioning system may select a serverto use as a webserver. The provisioning system may then create aworkflow that prepares the server for use as a webserver. As part of theworkflow, a machine image may be loaded on the server. The machine imagemay include operation system, web hosting software and/or settings.After loading the machine image, the server may be caused to boot intothe operating system and receive any further software and/or settings.Such settings may include a domain name and/or website and securityconfiguration. After provisioning is complete, the server may be turnedover to a management system for use as a webserver and inclusion in theresource stack.

Turning now to FIG. 1, an illustrative example of a system 100 with aresource stack 102 in accordance with at least one embodiment is shown.A user may create a template 104 to define a resource stack 102 toautomate creation of a system, such as a system supporting a webapplication. The template 104 may define resources, connections,properties, dependencies, identification and/or settings of resources104, 106 and 108 of a resource stack 102. The template 104 may alsodefine links between resources defined in the template 104. Linking mayinclude configuring resources of a resource stack to communicate withone another over a network, transmit requests, receive responses andotherwise interoperate. The template may define connections of theresource stack, such as a network topology for use with the resourcestack that defines connectivity and/or communication paths available toresources within the resource stack. When used herein, a connection maybe viewed as a communication path between two or more resources. Thetemplate 104 may be submitted to a stack management system 110 to createthe resource stack 102 as defined in the template 104. The stackmanagement system 110 may parse the template 104 and determine an orderof construction of the resources 104, 106 and 108 in the resource stack102. The stack management system 110 may communicate with a provisioningsystem 111 to managing provisioning of the resource stack 102. Theprovisioning system 111 may request a resource provisioning system 112provision resources 104 and 108 that are managed by the provider of thestack management system 110. Custom resource 106 may be initialized byrequesting the initialization of the custom resource 106 from a customresource manager 116 through notification through custom resourcemessaging 114. The notification may include information necessary tointegrate custom resource 106 into the resource stack 102, including anyconnections with resources 104 and 108. The custom resource manager 116may then return an indication of successful integration back throughcustom resource messaging 114. The indication may include settings,including unique identifiers to identify the custom resources that maybe applied by the stack management system to resources 104 and/or 108 inthe resource stack 102. Examples of custom resources may includeelectronic mail services, website monitoring solutions, log pollingservices and other IaaS, PaaS or SaaS services.

As an illustrative example, a resource stack 102 may include anapplication server, database and search engine. The search engine may bea custom resource 106 that is managed outside of the responsibility of aprovider of the stack management system 110. An example of suchseparation of management responsibility may include resourcesimplemented on hardware hosted outside of the provider of the stackmanagement system. Another example of separate management includes aservice implemented on resources controlled by a same provider of thestack management system, but managed by an entity other than theprovider of the stack management system. Yet another example of separatemanagement includes a service implemented by the same provider of thestack management system, but managed as a separate entity to hide thecomplexity of the service from the user of the custom resource. Theresource stack 102 may be defined by a template 104 that is created by adeveloper of the application. The definitions in the template of theapplication server and database may use terms and variables recognizedby the stack management system 110. The definitions in the template ofthe search engine may include terms that define integration with theresource stack as recognized by the stack management system 110 and alsoterms and/or options recognized by a custom resource manager 116. Acustomer may request construction of the resource stack 102 using thetemplate 104. The stack management system 110 may determine dependenciesof the application server, database and search engine in the resourcestack 102.

In order to respect the determined dependencies, the stack managementsystem 110 may cause a provisioning system 111 to provision resources inan order according to dependencies when requesting the resourceprovisioning system 112 to construct resources. In the embodiment shown,the resource provisioning system 112 will first construct theapplication server and database. The provisioning system 111 may thencompose a notification to a custom resource manager 116 that includesinformation about the resource stack 102 and configuration specific tothe search engine. The configuration may be provided by a program, suchas a configuration generator, that is provided to the provisioningsystem 111 by the provider of the custom resource. The configurationgenerator may be associated with a custom resource definition that iscontained in the template and executed when the definition isencountered. The notification may be sent by a custom resource messagingsystem 114, protocol or other transmission to the custom resourcemanager 116. The custom resource manager may cause the search engine tointegrate with the database and application server using the informationprovided in the notification. The custom resource manager 116 may thenreturn an indication of success that may also include information aboutthe search engine for use by and/or introduced into configurations ofthe resources in the resource stack 102. After instantiation andconfiguration of the resources in the resource stack 102, the resourcestack 102 may be enabled for use.

The custom resource messaging 114 may be implemented in severaldifferent ways. In some embodiments, a notification service is used. Acustom resource manager 116 may subscribe to a subject of a notificationservice relating to initialization requests of a custom resource. Anotification service may allow a receiver create a subject (sometimesreferred to as a topic, in some suitable messaging systems) to whichother services may request publication. In some embodiments, thereceiver may define the protocol used for receipt of published messages.For example, a custom resource manager 116 of an electronic mail servicemay create a subject of custom resource administration requests for theelectronic mail service. The delivery of messages may be customized bythe custom resource manager 116, including the protocol, such ashypertext transfer protocol (HTTP), file transfer protocol (FTP) orother protocols or combination of protocols suitable for thetransmission of messages from one system to another. The notificationservice may then push messages to the custom resource manager 116 whenreceived from the provisioning system 111. In one embodiment, anotification may be deposited on a storage device in a specifiedlocation. The recipient, such as the provisioning system 111 or customresource manager 116, may periodically poll the location to determine ifan action is required. In another embodiment, application programminginterface (API) calls are used to pass the messages. The API interfacemay be standardized to simplify the complexity of supporting multipleAPIs by the provisioning system 111. In some embodiments, a combinationof the forgoing methods may be used. For example, a notification servicemay be used for the transmission of the notification and a response tothe notification may be made by placing the response in storage.Communications between the provisioning system 111 and custom resourcemanager 116 may be secured. For example, verification of the messagesmay occur. Only notifications that are electronically signed by theprovisioning system 111 with an electronic (e.g., digital) signatureverifiable by the custom resource manager will be performed by thecustom resource manager 116. Only responses signed by the customresource manager may be accepted by the stack management system.

Modifying resources 104, 106 and 108 in the resource stack 102 may alsooccur while keeping the integration of the resource stack 102. Forexample, a database instance may be upgraded to a higher capacitydatabase instance. The new database instance may be provisioned and datafrom the smaller database instance may be provided to the new databaseinstance. Connections to the smaller database within the resource stack102 may be modified to use the new database instance. Resources managedby the provisioning system 111 may be more directly modified. Customresources 106 may be informed through a notification to the customresource manager 116 that includes the modification information of thedatabase. An indication of successful integration with the resourcestack 102 may confirm the modifications were successfully applied to thecustom resource 106.

In some embodiments, the resource stack 102 may be modified as a whole.In one embodiment, the template 104 defines options for scaling theresource stack 102. Using these options, a user may indicate whichresources or all resources that may be scaled. The provisioning system111 may cause the resource provisioning system 112 to modify resourcesmanaged by the provisioning system 111 and notify the custom resourcemanager 116 of changes to the resource stack 102 and requested scalingof the custom resource 106. In other embodiments, the resource stack maybe operated on to form a copy, backup or even be deleted. During a copyoperation, the resource provisioning system 112 copy computing resourcesaccording to processes in place for the management of the computingresources and reference the copies as part of metadata about theresource stack. The provisioning system 111 may then send a notificationthrough custom resource messaging 114 to the custom resource manager 116to form a copy of the custom resource 106. The custom resource manager116 may return an indication of success along with a reference to thecopy of the custom resource 114. The reference to the copy of the customresource 114 may then be stored with the resource stack metadata.Reconstruction of the copy may use resource stack metadata to referenceresources, including custom resources, in a request to reconstruct thecopy. In another embodiment, the resource stack may be deleted as awhole. A request may be received that requests deletion of a resourcestack matching a stack identifier. The provisioning system 111 may causethe resource provisioning system 112 to deprovision resources 104 and108 managed by the provisioning system 111. Notifications to customresource managers 116 may be sent requesting destruction or retirementof the custom resource 114. Indications of successful destruction orretirement may be returned to the stack management system 110 via theprovisioning system 111. The success or failure may then be returned tothe party that requested deletion of the stack.

For the purpose of illustration, templates are used throughout thepresent disclosure. It should be recognized, however, that other methodsof creating resource stacks that do not necessarily use templates asdescribed herein may be used. As one example, a customer of a computingresource provider may cause a stack to be created through an API callthat provides instructions for creating the stack. In anotherembodiment, a message identifying a storage location that contains arepresentation of a resource stack contains the request to create aresource stack.

In an example of an implementation of FIG. 1, FIG. 2 shows a diagramrepresenting a resource stack 204 that includes provider 206 managedresources of a load balancer 214, application servers 216 and databases218. The resource stack 204, in this illustrative example, also includesan electronic mail service 220 managed by a vendor 208 external to theprovider 206. A template 202 may define the resource stack 204 andconnections between the resources 214, 216, 218 and 220. In the exampleshown, the application servers 216 are connected to the load balancers214, databases 218 and electronic mail service 220. The template 202 mayalso define dependencies, such as the electronic mail service 220 anddatabase 218 being initialized before the application servers 216 areinitialized. The template 202 may also contain custom resource termsthat cause a configuration generator to be executed and produce at leastconfiguration information to send to the custom resource manager 224.

As a result of a request to create the resource stack 204, a stackmanagement system 210 may determine dependencies and request aprovisioning system 211 cause instantiation of resources 214, 216, 218and 220 according to the dependencies determined. These dependencies maybe represented by an ordering of instantiation and/or a directed acyclicgraph with each node being a resource and each directed edge being adependency. In the embodiment shown, the provisioning system 211 maycause the resource provisioning system 212 to provision the loadbalancers 214 and database 218 before the application server 216 becauseof dependencies. The stack management system 210 may also execute aconfiguration generator that provides configuration for the customresource manager 224 based on the template 202 information and resourcestack 204 configuration before requesting the provisioning system 211 toprovision the application servers 216. The provisioning system 211 maythen cause a notification to be sent to the custom resource manager 224of the electronic mail service 220 that includes the configurationinformation generated. The custom resource manager may then integratethe electronic mail service 220 with the resource stack 204, and morespecifically prepare the electronic mail service 220 for connection tothe application server 216 such as by providing access credentials. Thecustom resource manager 224 may return an indication of success, such asa message, that includes configuration and other information, such asthe access credentials, that may be used to configure the applicationservers 216. After the dependencies have been satisfied, theprovisioning system 211 may then cause the resource provisioning system212 to provision the application servers 216. The provisioning system211 may further include configuration from the load balancers 214,databases 218 and electronic mail service 220 in a request to theresource provisioning system 212 to prepare the application servers foroperation in the resource stack. After finishing the creation of theresource stack, the resource stack may be enabled for service. In oneembodiment, should any resource fail to instantiate or cause stackcreation to exceed a timeout period, the stack may be considered to failand a reason for failure returned. In some embodiments, all successfullyinstantiated resources further processed to be destroyed.

Because the stack management system 210 and/or provisioning system 211contains information about each of the resources 214, 216, 218 and 220,requested modifications to the resource stack 204 may be relayed to theresources 214, 216, 218 and 220. For example, information aboutadditional application servers 216 may be relayed by the provisioningsystem 211 to the load balancers 214 to use as an option for loadbalancing. The additions to the application servers 216 may also bereported to the electronic mail service 220 through a notification 222,such that the electronic mail service 220 operates according toconnections from the additions being authorized. The information torelay upon modification may be defined in the template, intrinsic to theprovider, defined by the vendor that operates the custom resource orotherwise provided to the stack management system 210 and/orprovisioning system 211.

Turning now to FIG. 3, an illustrative example of a message 300 inaccordance with at least one embodiment is shown. The message may betransmitted from a provisioning system 211 of FIG. 2 to a customresource manager 224, as a result of the stack management system 210encountering a definition of a custom resource in a template andrequesting the provisioning system 211 construct the custom resource.The provisioning system 211 of FIG. 2 may send notifications 222 such asthis message 300 shown in FIG. 3 to a custom resource manager 224. Themessage 300 may include a resource independent portion 304 and a payload314 directed to information specific to the custom resource. Theresource independent portion 304 may include information about theresource stack and the properties of the custom resource in the resourcestack. In the embodiment shown, a provisioning system 301 builds theresource independent portion 304 of the message that comprises a context305, stack identifier 306, logical association identifier 308, namespace310 and resource identifier 312. A context 305, such as a uniqueidentifier, may uniquely identify the message so that duplicate and/orprior messages may be discarded. The context 305 may also provideinformation about the resource stack construction. The stack identifier306 may provide a value that can be used to reference the resourcestack. The logical association identifier 308 may be an identifier thatrefers to the custom resource used in the template that triggered thecreation of this message 300. A namespace 310 may define the bounds ofidentifiers to allow for disambiguation of similar identifiers. Theresource identifier 312 may provide the provisioning system's 301reference to the custom resource being addressed.

The message 300 may also include a payload 314. The stack managementsystem may treat the payload 314 as an information blob (i.e., arbitraryinformation) that should be attached to the message 300 without thestack management system operating on the information within the payload314. In the embodiment shown, the payload may be defined by the template303 as processed through the stack management system 302 to be includedin the message 300. Processing the template 303 through the stackmanagement system 302 provides an indication of the template 303 to acustom resource manager. In another embodiment, the payload may beconstructed by a configuration generator that is registered with aparsing system that parses the template 303 and gives the resultingpayload to the stack management system 302 for inclusion in the payload314. The parsing system may parse the template into tokens, such asdefinitions, that may be used to construct, configure and otherwiseoperate upon resources in the resource stack. Upon parsing a customresource term, the parsing system may pass the configuration generatorinformation from the template 303 and/or resource stack information tocomplete the configuration. The configuration generator may thengenerate the payload 314 to be attached to the message 300. This payload314 may contain configuration 318 specific to the custom resource thatmay not be contained in the resource independent portion 304 of themessage 300. For example, the electronic mail service in FIG. 2 may beprovided configuration 318 in a payload that defines domains, nameservers and individual electronic mail addresses.

Turning now to FIG. 4, an illustrative example of a process 400 that maybe used in accordance with at least one embodiment is shown. The processmay be accomplished by any suitable system, such as collectively bysystems described above in connection with FIG. 1, including a stackmanagement system 110, custom resource manager 116, provisioning system111, resource stack 102, resources 104 and 108 and custom resource 106.A stack management system may receive 402 a request to create a resourcestack. For example, a developer may give access to a template defining aresource stack to a tester for purpose of testing a new version of a webapplication. The tester may request that the resource stack be createdin a testing environment in a program execution service, such thattesting of the new version may be accomplished. The program executionservice may determine whether the template request is authorized, and ifso, provide the request to the stack management system.

As illustrated, the stack management system may, in parallel, provision403 resources under its control and send 404 a message to a customresource manager to initialize custom resources not under the control ofthe stack management system. It should be noted, however, thatprovisioning 403 the resources and sending 404 the message may beperformed in sequence and not necessarily in parallel. The stackmanagement system may receive a response 406 as a result of sending themessage. The response may indicate successful initialization of thecustom resource and provide information about the custom resource, suchas an identifier and/or credentials recognized by the custom resourcemanager. In some embodiments, a custom resource may be eventuallyconsistent and therefore an indication of success may be different thanan indication that the custom resource is ready to use. For example,eventually consistent storage may acknowledge a request for storage asan indication of success, but the storage may not be made availableuntil later. Using the response and the resources, the stack managementsystem may configure 408 resources in the resource stack to integratewith the custom resource. After the integration, the resource stack maybe enabled 410. In some embodiments, an enabled resource stack may beimmediately used. In another embodiment, an enabled resource stack ismade available for customization, but is not activated for its intendeduse.

As an illustrative example of an embodiment of the process 400, thestack management system may receive a request to create a stack with awebserver connected to an offsite backup service that stores dailyincremental backups. The stack management system may provision thewebserver and send a message to the offsite backup service to requestinitialization of a location for daily incremental backups of thewebserver. In one embodiment, a location may be a URL that is used toaccess a storage area provided for the backups. The offsite backupservice may return a response identifying a location configured toreceive daily incremental backups for the webserver and information usedto secure the connection with the offsite backup service. In oneembodiment, the information used to secure the connection may becredentials used in encrypting the connection to the offsite backupservice. The stack management system may then use the locationinformation to configure the webserver for daily incremental backups.After configuration of the resource stack is complete, the resourcestack containing the webserver and backup service may be enabled for theuser to customize or make live.

Some or all of the process 400 (or any other processes described herein,or variations and/or combinations thereof) may be performed under thecontrol of one or more computer systems configured with executableinstructions and may be implemented as code (e.g., executableinstructions, one or more computer programs or one or more applications)executing collectively on one or more processors, by hardware orcombinations thereof. The code may be stored on a computer-readablestorage medium, for example, in the form of a computer programcomprising a plurality of instructions executable by one or moreprocessors. The computer-readable storage medium may be non-transitory.

FIG. 5 shows an illustrative example of a process 500 that may be usedin managing a resource stack that contains a custom resource. Theprocess 500 may be a variation of the process 400, discussed above.Further, the process may be accomplished by any suitable system, such ascollectively by systems described above in connection with FIG. 1,including a stack management system 110, custom resource manager 116,provisioning system 111, resource stack 102, resources 104 and 108 andcustom resource 106. The stack management system may receive 502 arequest to construct a resource stack from a template that describes theresources in the resource stack. For example, a developer may giveaccess to a template defining a resource stack to a tester for purposeof testing a new version of a web application. The tester may requestthat the resource stack be created in a testing environment in a programexecution service, such that testing of the new version may beaccomplished. The program execution service may determine whether thetemplate request is authorized, and if so, provide the request to thestack management system. The stack management system may determine 504dependencies between resources in the resource stack. As discussedabove, determining dependencies may be determined in various ways,including declarations of dependency, determinations of dependency by astack management system, default rules or other implicit or explicitdefinitions of resource dependency.

Using the determined dependencies, the stack management system, in anembodiment, determines 506 an order of construction of resources definedin the template. Starting at the first resource in the determined order,the stack management system accesses 508 the next resource from thetemplate to examine. Examining the next resource from the template toexample may include making 510 a determination whether the resource is acustom resource. If it is determined 510 that the resource is not acustom resource 510, but is managed by the stack management system, theresource is provisioned 512 and integrated 514 into the stack, such asby configuring connections to other resources as defined by thetemplate. Performance of the process 500 may include determining 524whether construction of the resource has exceeded a predetermined amountof time (a “timeout”). A timeout may be measured by a timer. In someembodiments the timeout is global and applied to the resource stack as awhole. In other embodiments, each resource in the resource stack isgiven an individual timeout. If it is determined 524 that the timeout isexceeded 524, such as a timeout between 1 to 10 hours or morespecifically 4 hours, the creation of the stack may be caused to fail525. In instances of failure, in an embodiment, instantiated resourcesmanaged by the stack management system may be destroyed. Destroying aresource may include deprovisioning the resource such that theinfrastructure supporting the resource may be returned to a pool ofavailable infrastructure. Instantiated custom resources may also bedestroyed by sending the management system of the instantiated customresource a notification to destroy the custom resource. In someembodiments, the notification to destroy will not be sent without userintervention because destruction of a custom resource may result indestruction of data. This reaction to failure may be controlled bytemplate information, user settings and/or defaults set by a provider ofthe custom resource. If the timeout is not exceeded 524 and the creationof the stack is complete 526, the stack may be enabled 528 for use. Ifdetermined 524 that the construction of the resource stack has notexceeded a timeout, a determination may be made 526 whether constructionof the resource stack is complete. If it is determined 526 thatconstruction of the resource stack is not complete, the next resourcemay be examined 508 and the process 500 may proceed as described above.

However, if it is determined 510 that the resource is not custom, thestack management system may construct 516 a message to the customresource manager based on the template information, resource stackinformation and other information provided by the user and/or providerof the custom resource. The message may then be sent 518 to the customresource manager according to an agreed-upon messaging system orprotocol. The stack management system may then receive 520 an indicationof successful integration with the resource stack by the custom resourcemanager. For example, the indication may be sent by message, API call,deposit at a storage location or other communication with a stackmanagement system. While not illustrated, it should be recognized thatan indication of failure may also be provided, if failure has occurred.Such failure may include an incorrect configuration sent to the customresource manager, failure to create the custom resource and/orinsufficient permission to create the custom resource. The process 500may be adapted accordingly to process such failure. The stack managementsystem may then perform 522 integration tasks to finish the integrationof the custom resource. The cycle of resource instantiation fromoperations 508 to operation 524 may then repeat if the resource stack isnot 526 completely instantiated and the timeout has not been exceeded524. Otherwise, if the timeout has not been exceeded 524 and no moreresources remain for instantiation 526, the stack may be enabled 528 forfurther use, such as deployment and/or personalization.

In some embodiments, a notification service is used for sending themessage 518 and receiving 520 an indication of success. In oneembodiment a notification service is used. A custom resource manager 116may subscribe to a subject of a notification service relating toinitialization requests of a custom resource. The delivery of messagesmay be customized by the custom resource manager 116, including theprotocol, such as HTTP, FTP, electronic mail, SMS, a queue or otherprotocols. The notification service may then push messages to the customresource manager 116 when received from the provisioning system 111. Inanother embodiment, a notification may be deposited on a storage devicein a specified location. The recipient, such as the provisioning system111 or custom resource manager 116 may poll the location to determine ifan action is required. In another embodiment, application programminginterface (API) calls are used to pass the messages. The API interfacemay be standardized to simplify the complexity of supporting multipleAPIs by the provisioning system 111. In other embodiments, a combinationof the forgoing methods may be used. For example, a notification servicemay be used for the transmission of the notification and a response tothe notification may be made by placing the response in storage.Verification of the messages may also occur. In one embodiment, onlynotifications signed by the provisioning system 111 will be performed bythe custom resource manager.

Turning now to FIG. 6, an illustrative example of a process 600 that maybe used by a custom resource manager in accordance with at least oneembodiment is shown. The process may be accomplished by systems shown inFIG. 1, including a stack management system 110, custom resource manager116, provisioning system 111, resource stack 102, resources 104 and 108and custom resource 106. The custom resource manager may receive 602 arequest to integrate a custom resource provided with a resource stack.The custom resource manager may parse 604 the request into anindependent portion and a payload. The custom resource manager may thenuse the payload to determine 606 a configuration of the custom resourceto construct as part of the resource stack. In some embodiments, theindependent portion may also be used, or exclusively used, to determinethe configuration of the custom resource. Based at least in part on thedetermined configuration, the custom resource manager may initialize 608the custom resource and configure the custom resource to integrate withthe resource stack. For example, a custom resource may be provided by avendor in a data center separate from a provider of the stack managementsystem. Initialization of the custom resource may include provisioningthe custom resource, setting up services, creating database entries,constructing credentials and otherwise preparing the custom resource forintegration with the resource stack. In another example, a customresource may be provided by a sub-entity of a provider of the stackmanagement system. Initialization of the custom resource may includeconstruction of a second resource stack under the management of thesub-entity. As the second resource stack is treated as a customresource, the creation and management of the second resource stack maybe transparent to a user of the custom resource in their resource stack.

If successful initiation of the custom resource is successful, thecustom resource manager may return an indication of success and anyadditional information for the resource stack, such as a handle,physical source identifier and/or identification for the custom resourceand other settings. For example, if the custom resource is a monitoringsolution, the additional information may include alarms that have beencreated. In some embodiments, some or all of the independent portion isreturned to identify to which resource stack the message belongs. Inother embodiments, the additional information is returned for customeraccess rather than for the stack management system to access, as thecustomer may choose to self-configure. In one example, a custom resourcemay be a three dimensional printer and the configuration information maybe a design. Upon receiving the notification, the three dimensionalprinter may construct the design. Upon completion of the design, thethree dimensional printer may send an indication of successfulconstruction of the custom resource. In another example, a customresource may be a crowd-sourced resource, such as a resource based inhuman knowledge. A question may be posed to a group of people and themost common answer may be selected and returned as part of theindication of success.

The custom resource manager may also receive requests to modify thecustom resource. The request may also be parsed and the requestedmodification determined. The custom resource may be modified accordingto the determined request and re-integrated back into the resourcestack. In some embodiments, this re-integration may requirereconfiguration, such as if a hostname, address or other identifyinginformation has been changed and/or scaled to increase or decrease anumber of contact points. Once the modifications have been integrated,the custom resource manager may return an indication of successfulintegration back to the stack management system.

As custom resource management is out of the control of the stackmanagement system, failures of the custom resource may be handled indifferent manners. For example, a custom resource provider may refuse torespond because the provider's data center has been damaged. A timeoutfrom the notification may protect the stack management system fromwaiting too long for an acknowledgement. The exceeded timeout may thenbe reported to a calling entity that had requested that the resourcestack be built. In some embodiments, the calling entity may choose toreact to a detected failure. In one embodiment, a failure during aresource stack operation may be reported to the calling entity. Thecalling entity may choose to react, such substitute a different templateor custom resource in place of the current template or custom resource.In another embodiment, operational failure outside of the resource stackoperations, such as create, read, update and destroy, may be detectedand a response determined by other systems. In some embodiments, theresponse may include a request to modify the resource stack.

A resource stack provider may provide its catalog in a marketplaceformat. A customer may select resources managed by the provider and/orcustom resources managed by the custom resource provider. In someembodiments, selections from the marketplace may be included in atemplate for a resource stack. In one embodiment, a custom resourceprovider may pay a one time or reoccurring fee to be included in acatalog of available resources to include in a resource stack. Theprovider may then receive costs accrued by use of the custom resourceand or a fee for construction of the resource.

A template may define various aspects of the resource stack includingidentification of resources in the resource stack, properties ofresources, parameters, interconnections between resources of theresource stack, connections outside the resource stack, configurationsof the resource stack, setup operations to have resources perform andoperations to have resources to perform. In one embodiment, the templatemay include hierarchal definitions of resources. For example, a templatemay begin with a definition of the resource stack that containssub-definitions of resources, custom resources, operations to perform onor by resources and connections between resources. Each sub-definitionsof resources may further contain sub-definitions including options,descriptions, parameters, connections, sub-resources or other relevantdefinitions applicable to the resource.

FIG. 7 illustrates aspects of an example environment 700 forimplementing aspects in accordance with various embodiments. As will beappreciated, although a Web-based environment is used for purposes ofexplanation, different environments may be used, as appropriate, toimplement various embodiments. The environment includes an electronicclient device 702, which can include any appropriate device operable tosend and receive requests, messages or information over an appropriatenetwork 704 and convey information back to a user of the device.Examples of such client devices include personal computers, cell phones,handheld messaging devices, laptop computers, set-top boxes, personaldata assistants, electronic book readers and the like. The network caninclude any appropriate network, including an intranet, the Internet, acellular network, a local area network or any other such network orcombination thereof. Components used for such a system can depend atleast in part upon the type of network and/or environment selected.Protocols and components for communicating via such a network are wellknown and will not be discussed herein in detail. Communication over thenetwork can be enabled by wired or wireless connections and combinationsthereof. In this example, the network includes the Internet, as theenvironment includes a Web server 706 for receiving requests and servingcontent in response thereto, although for other networks an alternativedevice serving a similar purpose could be used as would be apparent toone of ordinary skill in the art.

The illustrative environment includes at least one application server708 and a data store 710. It should be understood that there can beseveral application servers, layers, or other elements, processes orcomponents, which may be chained or otherwise configured, which caninteract to perform tasks such as obtaining data from an appropriatedata store. As used herein the term “data store” refers to any device orcombination of devices capable of storing, accessing and retrievingdata, which may include any combination and number of data servers,databases, data storage devices and data storage media, in any standard,distributed or clustered environment. The application server can includeany appropriate hardware and software for integrating with the datastore as needed to execute aspects of one or more applications for theclient device, handling a majority of the data access and business logicfor an application. The application server provides access controlservices in cooperation with the data store, and is able to generatecontent such as text, graphics, audio and/or video to be transferred tothe user, which may be served to the user by the Web server in the formof HTML, XML or another appropriate structured language in this example.The handling of all requests and responses, as well as the delivery ofcontent between the client device 702 and the application server 708,can be handled by the Web server. It should be understood that the Weband application servers are not required and are merely examplecomponents, as structured code discussed herein can be executed on anyappropriate device or host machine as discussed elsewhere herein.

The data store 710 can include several separate data tables, databasesor other data storage mechanisms and media for storing data relating toa particular aspect. For example, the data store illustrated includesmechanisms for storing production data 712 and user information 716,which can be used to serve content for the production side. The datastore also is shown to include a mechanism for storing log data 714,which can be used for reporting, analysis or other such purposes. Itshould be understood that there can be many other aspects that may needto be stored in the data store, such as for page image information andto access right information, which can be stored in any of the abovelisted mechanisms as appropriate or in additional mechanisms in the datastore 710. The data store 710 is operable, through logic associatedtherewith, to receive instructions from the application server 708 andobtain, update or otherwise process data in response thereto. In oneexample, a user might submit a search request for a certain type ofitem. In this case, the data store might access the user information toverify the identity of the user, and can access the catalog detailinformation to obtain information about items of that type. Theinformation then can be returned to the user, such as in a resultslisting on a Web page that the user is able to view via a browser on theuser device 702. Information for a particular item of interest can beviewed in a dedicated page or window of the browser.

Each server typically will include an operating system that providesexecutable program instructions for the general administration andoperation of that server, and typically will include a computer-readablestorage medium (e.g., a hard disk, random access memory, read onlymemory, etc.) storing instructions that, when executed by a processor ofthe server, allow the server to perform its intended functions. Suitableimplementations for the operating system and general functionality ofthe servers are known or commercially available, and are readilyimplemented by persons having ordinary skill in the art, particularly inlight of the disclosure herein.

The environment in one embodiment is a distributed computing environmentutilizing several computer systems and components that areinterconnected via communication links, using one or more computernetworks or direct connections. However, it will be appreciated by thoseof ordinary skill in the art that such a system could operate equallywell in a system having fewer or a greater number of components than areillustrated in FIG. 7. Thus, the depiction of the system 700 in FIG. 7should be taken as being illustrative in nature, and not limiting to thescope of the disclosure.

The various embodiments further can be implemented in a wide variety ofoperating environments, which in some cases can include one or more usercomputers, computing devices or processing devices which can be used tooperate any of a number of applications. User or client devices caninclude any of a number of general purpose personal computers, such asdesktop or laptop computers running a standard operating system, as wellas cellular, wireless and handheld devices running mobile software andcapable of supporting a number of networking and messaging protocols.Such a system also can include a number of workstations running any of avariety of commercially-available operating systems and other knownapplications for purposes such as development and database management.These devices also can include other electronic devices, such as dummyterminals, thin-clients, gaming systems and other devices capable ofcommunicating via a network.

Most embodiments utilize at least one network that would be familiar tothose skilled in the art for supporting communications using any of avariety of commercially-available protocols, such as TCP/IP, OSI, FTP,UPnP, NFS, CIFS and AppleTalk. The network can be, for example, a localarea network, a wide-area network, a virtual private network, theInternet, an intranet, an extranet, a public switched telephone network,an infrared network, a wireless network and any combination thereof.

In embodiments utilizing a Web server, the Web server can run any of avariety of server or mid-tier applications, including HTTP servers, FTPservers, CGI servers, data servers, Java servers and businessapplication servers. The server(s) also may be capable of executingprograms or scripts in response requests from user devices, such as byexecuting one or more Web applications that may be implemented as one ormore scripts or programs written in any programming language, such asJava®, C, C# or C++, or any scripting language, such as Perl, Python orTCL, as well as combinations thereof. The server(s) may also includedatabase servers, including without limitation those commerciallyavailable from Oracle®, Microsoft®, Sybase® and IBM®.

The environment can include a variety of data stores and other memoryand storage media as discussed above. These can reside in a variety oflocations, such as on a storage medium local to (and/or resident in) oneor more of the computers or remote from any or all of the computersacross the network. In a particular set of embodiments, the informationmay reside in a storage-area network (“SAN”) familiar to those skilledin the art. Similarly, any necessary files for performing the functionsattributed to the computers, servers or other network devices may bestored locally and/or remotely, as appropriate. Where a system includescomputerized devices, each such device can include hardware elementsthat may be electrically coupled via a bus, the elements including, forexample, at least one central processing unit (CPU), at least one inputdevice (e.g., a mouse, keyboard, controller, touch screen or keypad),and at least one output device (e.g., a display device, printer orspeaker). Such a system may also include one or more storage devices,such as disk drives, optical storage devices, and solid-state storagedevices such as random access memory (“RAM”) or read-only memory(“ROM”), as well as removable media devices, memory cards, flash cards,etc.

Such devices also can include a computer-readable storage media reader,a communications device (e.g., a modem, a network card (wireless orwired), an infrared communication device, etc.) and working memory asdescribed above. The computer-readable storage media reader can beconnected with, or configured to receive, a computer-readable storagemedium, representing remote, local, fixed and/or removable storagedevices as well as storage media for temporarily and/or more permanentlycontaining, storing, transmitting and retrieving computer-readableinformation. The system and various devices also typically will includea number of software applications, modules, services or other elementslocated within at least one working memory device, including anoperating system and application programs, such as a client applicationor Web browser. It should be appreciated that alternate embodiments mayhave numerous variations from that described above. For example,customized hardware might also be used and/or particular elements mightbe implemented in hardware, software (including portable software, suchas applets) or both. Further, connection to other computing devices suchas network input/output devices may be employed.

Storage media and computer readable media for containing code, orportions of code, can include any appropriate media known or used in theart, including storage media and communication media, such as but notlimited to volatile and non-volatile, removable and non-removable mediaimplemented in any method or technology for storage and/or transmissionof information such as computer readable instructions, data structures,program modules or other data, including RAM, ROM, EEPROM, flash memoryor other memory technology, CD-ROM, digital versatile disk (DVD) orother optical storage, magnetic cassettes, magnetic tape, magnetic diskstorage or other magnetic storage devices or any other medium which canbe used to store the desired information and which can be accessed bythe a system device. Based on the disclosure and teachings providedherein, a person of ordinary skill in the art will appreciate other waysand/or methods to implement the various embodiments.

The specification and drawings are, accordingly, to be regarded in anillustrative rather than a restrictive sense. It will, however, beevident that various modifications and changes may be made thereuntowithout departing from the broader spirit and scope of the invention asset forth in the claims.

Other variations are within the spirit of the present disclosure. Thus,while the disclosed techniques are susceptible to various modificationsand alternative constructions, certain illustrated embodiments thereofare shown in the drawings and have been described above in detail. Itshould be understood, however, that there is no intention to limit theinvention to the specific form or forms disclosed, but on the contrary,the intention is to cover all modifications, alternative constructionsand equivalents falling within the spirit and scope of the invention, asdefined in the appended claims.

The use of the terms “a” and “an” and “the” and similar referents in thecontext of describing the disclosed embodiments (especially in thecontext of the following claims) are to be construed to cover both thesingular and the plural, unless otherwise indicated herein or clearlycontradicted by context. The terms “comprising,” “having,” “including,”and “containing” are to be construed as open-ended terms (i.e., meaning“including, but not limited to,”) unless otherwise noted. The term“connected” is to be construed as partly or wholly contained within,attached to, or joined together, even if there is something intervening.Recitation of ranges of values herein are merely intended to serve as ashorthand method of referring individually to each separate valuefalling within the range, unless otherwise indicated herein, and eachseparate value is incorporated into the specification as if it wereindividually recited herein. All methods described herein can beperformed in any suitable order unless otherwise indicated herein orotherwise clearly contradicted by context. The use of any and allexamples, or exemplary language (e.g., “such as”) provided herein, isintended merely to better illuminate embodiments of the invention anddoes not pose a limitation on the scope of the invention unlessotherwise claimed. No language in the specification should be construedas indicating any non-claimed element as essential to the practice ofthe invention.

Preferred embodiments of this disclosure are described herein, includingthe best mode known to the inventors for carrying out the invention.Variations of those preferred embodiments may become apparent to thoseof ordinary skill in the art upon reading the foregoing description. Theinventors expect skilled artisans to employ such variations asappropriate, and the inventors intend for the invention to be practicedotherwise than as specifically described herein. Accordingly, thisinvention includes all modifications and equivalents of the subjectmatter recited in the claims appended hereto as permitted by applicablelaw. Moreover, any combination of the above-described elements in allpossible variations thereof is encompassed by the invention unlessotherwise indicated herein or otherwise clearly contradicted by context.

All references, including publications, patent applications and patents,cited herein are hereby incorporated by reference to the same extent asif each reference were individually and specifically indicated to beincorporated by reference and were set forth in its entirety herein.

What is claimed is:
 1. A system, comprising: one or more computingdevices having one or more processors and memory including executableinstructions that, when executed by the one or more processors, causethe one or more processors to implement a provider computer systemconfigured to: create a configuration of one or more resources based atleast in part on a template that specifies one or more resources of aprovider service and one or more custom resources of another providerexternal to the provider service, the configuration of the one or moreresources comprising a computing resource provisioned by the providerservice and integrated with a custom resource provisioned by the otherprovider; communicate with the other provider to initialize the customresource and integrate the custom resource and the computing resourcebased at least on the template, wherein integrate includes configure oneor more connections between the custom resource and the computingresource; and provision the computing resource based at least in part onthe template.
 2. The system of claim 1, further comprising: additionalexecutable instructions that, when executed by the one or moreprocessors, cause the one or more processors to implement a workflowprocessing system configured to create the configuration of the one ormore resources based on the template.
 3. The system of claim 2, whereinthe workflow processing system further comprises a timer, the workflowprocessing system configured to cause the configuration of the one ormore resources to fail in creation if the timer exceeds a timeoutthreshold.
 4. The system of claim 1, wherein to configure the one ormore connections between the custom resource and the computing resourcethe executable instructions cause the provider computer system to orderconstruction of resources in the configuration of the one or moreresources based at least in part on the template such that dependenciesbetween the resources defined by the template are respected.
 5. Thesystem of claim 1, wherein the custom resource does not conform tointernal requirements of the provider service that provides thecomputing resource.
 6. A method, comprising: under control of one ormore computer systems of a resource provider, the one or more computersystems executing program instructions configured to perform: receiving,by the resource provider, a request to construct a configuration of oneor more resources defined by a configuration template that specifies atleast: a computing resource selected from one or more computingresources offered by the resource provider; and a custom resourceoffered by another provider external to the resourced provider;constructing the configuration of the one or more resources by at least:provisioning the computing resource based at least in part on theconfiguration template; sending a notification to the other providerinstructing the other provider to configure the custom resource for usein the configuration of the one or more resources; receiving a responseto the notification from the other provider comprising an indication ofsuccessful configuration of the custom resource; and enabling theconstructed configuration of the one or more the one or more resourcesfor use.
 7. The method of claim 6, further comprising: receiving arequest to modify the configuration of the one or more resources;sending a modification notification to the other provider instructingthe other provider to modify the custom resource; receiving a responseto the modification notification from the other provider comprising anindication of successful modification; and enabling use of themodification to the configuration of the one or more resources.
 8. Themethod of claim 6, further comprising: sending another notification to adifferent provider instructing the different provider to configureanother custom resource for use in the configuration of the one or moreresources; and receiving another response to the other notification fromthe different provider comprising another indication of successfulconfiguration of the other custom resource.
 9. The method of claim 8,wherein sending the other notification to the different provider furthercomprises constructing the notification to comprise an administrationsection and a payload, the administration section comprising informationabout the configuration of the one or more resources, and the payloadcomprises properties defined by the different provider.
 10. The methodof claim 6, wherein the custom resource does not conform to internalrequirements of the resource provider.
 11. The method of claim 6,further comprising ordering construction of resources in theconfiguration of the one or more resources based at least in part on theconfiguration template such that dependencies between the resourcesdefined by the configuration template are respected.
 12. The method ofclaim 6, wherein the configuration template further specifies adefinition for integrating the selected computing resource and thecustom resource into the configuration of the one or more resources, andwherein provisioning the computing resource based at least in part onthe configuration template includes provisioning the computing resourcein accordance with the definition specified by the template.
 13. Anon-transitory computer-readable storage medium storingcomputer-executable instructions that are executed by one or moreprocessors of a computer system to implement a resource providerconfigured to: receive a request to construct a configuration of one ormore resources, the one or more resources including: a resource selectedfrom one or more computing resources of the resource provider; and acustom resource external to the one or more computing resources of theresource provider; construct the configuration of the one or moreresources, wherein said construct includes: provision the resource ofthe resource provider; instruct configuration of the custom resource foruse in the configuration of the one or more resources; and receive anindication of successful configuration of the custom resource that isexternal to the computing resources of the resource provider; and enablethe constructed configuration of the one or more resources for use. 14.The non-transitory computer-readable storage medium of claim 13, whereinanother provider provides the custom resource, wherein to instructconfiguration of the custom resource for use in the configuration of theone or more resources, the computer-executable instructions are furtherexecuted to send a notification to the other provider of the customresource that instructs the other provider to configure the customresource for use in the configuration of the one or more resources, andwherein to receive the indication of successful configuration of thecustom resource, the computer-executable instructions are furtherexecuted to receive a response to the notification from the otherprovider.
 15. The non-transitory computer-readable storage medium ofclaim 14, wherein the computer-executable instructions are furtherexecuted to: receive a request to modify the configuration of the one ormore resources; send a modification notification to the other providerthat instructs the other provider to modify the custom resource; receivea response to the modification notification from the other providercomprising an indication of successful modification; and enable use ofthe modification to the configuration of the one or more resources. 16.The non-transitory computer-readable storage medium of claim 14, whereinthe computer-executable instructions are further executed to: sendanother notification to a different provider that instructs thedifferent provider to configure another custom resource for use in theconfiguration of the one or more resources; and receive another responseto the other notification from the different provider comprising anotherindication of successful configuration of the other custom resource. 17.The non-transitory computer-readable storage medium of claim 16, whereinto send another notification to the different provider, thecomputer-executable instructions are further executed to construct theother notification to include an administration section and a payload,wherein the administration section comprises information about theconfiguration of the one or more resources, and wherein the payloadcomprises properties defined by the different provider.
 18. Thenon-transitory computer-readable storage medium of claim 13, wherein thecustom resource does not conform to internal requirements of theresource provider.
 19. The non-transitory computer-readable storagemedium of claim 13, further comprising ordering construction ofresources in the configuration of the one or more resources based atleast in part on a configuration template such that dependencies betweenthe resources defined by the configuration template are respected. 20.The non-transitory computer-readable storage medium of claim 13, whereinthe received request comprises an independent portion and a payload, thepayload conforming to a specification of a custom resource manager andcomprising a configuration for the custom resource.